Lesson 3. Why Do Scholars Use 30% as the Debt Threshold Ratio?

Last updated 8 months ago

Hassan keeps seeing "30% debt limit" in every halal investing guide. Why 30%? Why not 25% or 35%? Did someone just pick a random number?

What People Think

These percentages are just made-up modern numbers.

The Reality

This number comes from a 1,400-year-old conversation between the Prophet (peace be upon him) and his companion.

The Original Story

Sa'd ibn Abi Waqqas was dying and wanted to give away all his money to charity. The Prophet Muhammad (peace be upon him) gently told him:

"One-third, and one-third is a lot." (الثلث، والثلث كثير)

How This Connects to Modern Finance

Islamic scholars used qiyās (analogy) - a basic tool of Islamic law:

  • If giving away more than 1/3 of your money is "a lot"

  • Then, owing more than 1/3 in debt is also too much

  • The 30% limit keeps this spirit of balance

Why This Makes Sense

  • Old wisdom: Being careful with money has worked for centuries.

  • Safety: Stops companies from borrowing too much and becoming unstable.

  • Clear rules: Gives exact numbers to follow.

  • Flexible system: Based on ideas, not strict rules.

The Modern Application

The AAOIFI (global Islamic finance standards body) formalized this as:

  • Interest-bearing debt must be less than 30% of the 36-month average market capitalization.

  • Interest-bearing assets must be less than 30% of the 36-month average market capitalization.

  • Based on scholarly consensus and practical testing.

What This Shows Us

Islamic finance isn't random rules made by today's scholars. It's old wisdom carefully applied to today's challenges through smart thinking.

The Bigger Idea

The hadith isn't really about exact percentages - it's about avoiding “too much” (ghuluw) in all parts of life, including how we handle money.